Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
327419Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
654839619.3old
47148337825.52008-07-21 09:16:53
644360593929.32008-07-21 09:16:53
ECM
DigitsB1Curves
2550000280 / 280
30250000515 / 640
Estimated T-Level: 29.0
TF below 2^91 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver KruseABB0E0B9A0410E653013
Verified2017-10-13Oliver KruseABB0E0B9A0410E65310097813
Verified2017-12-12ATHABB0E0B9A0410E6537609213
Verified2020-04-18Oliver Kruse1C3776CD87AFC35F312857453
Verified (Factored)2022-05-12Jorge Coveiro1C3776CD87AFC35F17346153
Verified (Factored)2022-05-12Jorge Coveiro1C3776CD87AFC35F17346153
Verified2024-07-11kkmrkkblmbrbk1C3776CD87AFC35F332279953
History
DateUserTypeResult
2024-09-27yuriy_5-1NF-PM1
B1=12000002, B2=2107215910800
2024-07-11PoaoCERT
PRP Certification
Proof certified good
2024-07-11kkmrkkblmbrbkC-PRP
M327419/47148337/644360593/654839 : 1C3776CD87AFC35F
PRP proof power = 5
PRP: Verified
Proof certified good
2023-03-23Denial140NF-PM1
B1=1000000, B2=20563492950
2022-05-12Jorge CoveiroC-PRP
M327419/654839 : 1C3776CD87AFC35F
PRP proof power = 5
PRP: Verified (Factored)
PRP proof never uploaded
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-18Oliver KruseC-PRP
M327419/654839/47148337/644360593 : 1C3776CD87AFC35F
PRP: Verified
PRP without proof (small exponent)
2017-12-12ATHC-PRP
M327419/654839/47148337/644360593 : ABB0E0B9A0410E65
PRP: Verified
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M327419/654839/47148337/644360593 : ABB0E0B9A0410E65
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M327419/654839/47148337/644360593 : ABB0E0B9A0410E65
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M327419/654839/47148337/644360593 : ABB0E0B9A0410E65
PRP without proof (not generated)
2008-07-21J FeitsmaF
Factor: 644360593
2008-07-21J FeitsmaF
Factor: 47148337